hemisphere

Pronunciation

• (UK) IPA ^(key): /ˈhɛmɪsfɪə/
• (US) enPR: hĕ'mĭsfîr, IPA ^(key): /ˈhɛmɪsfɪər/

• Audio (US)

  (file)

Noun

Singular hemisphere

Plural hemispheres

1. (countable) (geometry) A hemisphere is half of a sphere.
   • Synonyms: hemi-sphere, semisphere, semi-sphere, halfsphere and half-sphere